In the wake of the capital city’s foul air problem, the Supreme Court (SC) has asked the Delhi government and Environment Pollution Prevention & Control Authority to explore the feasibility of introducing public transport buses run by hydrogen fuel in the city as against regular electric buses. However, the government informed the court that it was in the process of purchasing 1,000 electric buses, but the court said it was better to adopt future technologies and leap forward from Compressed Natural Gas (CNG) to hydrogen fuel. The SC pointed to the western US state of California as an example to look up to for using hydrogen fuel. Electricity is produced in Hydrogen fuel cells by combining hydrogen with oxygen—two elements which are abundant. There are over 4,000 hydrogen-fuel-cell cars and 33 hydrogen fuel stations in the western US state of California. This technology was first introduced in 2015. Rockets have been using fuel cells for decades. Breaking up water will yield Hydrogen and oxygen and its cheap, however, the fuel cell technology is expensive. Each refilling station in California costs around Rs 17.1 crore, after heavy subsidies. Hydrogen fuel stations need a cooling down period after filling each vehicle. Stations in California currently are filling only 50-60 tanks a day. Hydrogen fuel cell needs platinum to function which is a precious metal that trades for $839 an ounce. It is found largely in South Africa and Russia, which will mean higher the import bills if hydrogen fuel is to be used.